Analyzing Ecosystems

One environment being replaced by another over time until it is stable

• Weathering

• Ecological succession

• Erosion

• Community

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

When hurricane-force winds destroy a forest, what effect does this have on an ecosystem?

• increase land at beaches

• reduce salt water flowing into freshwater lakes

• increase pollution in rivers

• eliminate animal habitats

Tags

NGSS.MS-LS2-4

How do catastrophic events impact the organisms that live in that ecosystem?

• Reduce the amount of food

• Reduce the amount of shelter

• Organisms may relocate

• All of the above

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

True or False: Primary succession has no existing ecosystem

• True

• False

The process of regrowth in an ecosystem that has been recently destroyed is called

• Primary Succession

• Biome

• Secondary Succession

• Erosion

Tags

NGSS.MS-LS2-4

Lichen and moss in an ecosystem are also referred to as

• Shrubs

• Primary species

• Climax species

• Pioneer species

What role do lichen and moss perform during ecological succession?

• Prevent other plant species from growing

• Create oxygen

• Help form soil

• Help bees pollinate

Tags

NGSS.MS-LS2-2

Which type of weathering causes ice wedging in the cracks of rocks?

• Mechanical

• Chemical

Tags

NGSS.MS-ESS2-2

Which type of weathering causes tree roots to pry apart concrete

• Mechanical

• Chemical

Tags

NGSS.MS-ESS2-2

Which type of weathering causes oxidation of iron in rocks?

• Mechanical

• Chemical

Tags

NGSS.MS-ESS2-2